Attachment for dental engines.



No. 767,705. A PATENTED AUG. 16, 1904. I. LYMAN.

ATTACHMENT FOR DENTAL ENGINES.

APPLIOATIOR FILED JULY 1, 1903.

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UNITED- STATES Patented August 16, 1904.

ISIDOR LYMAN, OF CLEVELAND, OHIO.

ATTACHMENT FOR DENTAL ENGINES.

SPECIFICATION forming partof Letters Patent No 767,705, dated August 16, 1904.

Application filed July 1,1903. Serial No. 163,887. (No model.)

To all whom it may concern:

Be it known that I, IsI oR LYMAN, a citizen of the United States of America, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Attachments for Dental Engines; and I hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in dental engines. V v

The object of this invention is to providea new and useful improvement in a dental engine by means of which either a constant or intermittent stream of wateror blast of air can be caused to play upon the tooth while it,

My invention also consists in the featuresv of construction and combination of parts illustrated in the drawings, hereinafter described in the specification, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a dental engine provided with my attachment. Fig- 2. is a section on line 2 2, Fig. 1, somewhat enlarged. Fig. 3 is a section on line 3 3, Fig. 2. Fig. 4 is a section on line 4 4, Fig. 3. Fig. 5 is an enlarged sectional view of the liquid-receptacle.

Again referring to the drawings, 1 represents the base, and 2 the upright, of the stand which supports a dental engine of the usual construction, comprising a pedal 3 and a crank-wheel 4, which is operatively connected to the pedal 3 by a pitman 5 and to the driving-wheel 6 by a belt 7. A flexible shaft 8 is operatively connected to the driving-wheel 6 in the usual manner. On the end of the flexible shaft 8 is secured a handpiece9.

"12 by means of a screw 13.

On the upright 2is secured asmall bracket On top of the bracket 12 is mounted a small bellows of the usual construction, comprising a body portion 14, which is provided with a spout 15. The spring 16 of the bellows is preferably arranged between the handle portion 17 and 18 of the bellows, so that it can be renewed without disturbing the body portion of the bellows. The bellows is secured to the bracket by means of a bolt 19.

On the upright 2 above the bellows is arranged a bracket 20, which supports a receptacle 21, suitable for holding a liquid which may be either water for cleansing the tooth which isbeing operated upon or a medicinal liquid for'treating the teeth or gums.

In the top of the receptacle 21 is'arranged a stopper 22, in which are formed two openings in which are arranged tubes 23 and 24, respectively, which fit snugly in the said openings, but are arranged to slide in the said openings so that they can be alternately raised or lowered, as desired. The tube 23 is connected directly with the bellows by means of a flexible tube 25. To the tube 24 is secured a flexible tube 26, in the end of' which is secured a nozzle 27. This nozzle is provided with clamps 28, by means of which it is secured to the handpiece of the dental engine. Between the liquidreceptacle and the bellows is arranged a bracket29, which forms a support for an alcOh l-lamp-BO for heating the receptacle 21.

On the pedal 3 is arranged my device for controlling the operation of the bellows. This device comprises a small block 34, which is provided with, flanges 35, which engage the under side of the pedal. Screws 36 are provided for securing the flanges to the pedal. In the block 34 is formed a groove or slideway 37. In the slideway 37 are formed a series of holes 38, in which are removably secured teeth or projections 39. In the slideway 37 is mounted a small carriage 40, which carries a pawl 41, which when in its normal position will engage with the teeth or projections 39. In the carriage 40 is mounted a stud 42, which rests on the pawl and when pressed down will lift the pawl out of engagement with the projection 39 on the bottom of the slideway. In the carriage 40 is secured a pin 43, and in the block 34 is secured a pin 44. A cord45 is secured to the pin 43 and is carried under the pin 44 and then up to the arm 17 of the bellows.

The operation of this device is as follows: If the operator desires to have a constant stream of water, the tube 23, which is directly connected with the bellows, is arranged so that its lower end will be above the liquid in the receptacle 21, and the tube 24, which is connected with the nozzle on the handpiece, is arranged so that its lower end will be immersed in the liquid, or if the operator desires to produce a spray he will arrange the tubes in exactly the reverse position. When the operator desires to start the operation of the bellows, he shifts the carriage 40 in the slideway 37 until it engages with the tooth 39 at the left end thereof, and then when the pedal is depressed it will cause a compression of the bellows. When the operator desires to stop the operation of the bellows, he taps the stud 42 with his foot, thus disengaging the pawl, and the carriage will move to the opposite end of the slideway, thus allowing the cord 45 to become slack, and thereafter depressing the pedal will not operate the bellows. If the operator does not wish the bellows to be entirely compressed with each stroke of the pedal, he can move the tooth 39 at the left end toward the tooth at the right end, thus allowing a certain amount of slack in the cord 45 all the time.

What I claim is 1. The combination with a dental engine of an attachment, comprising a bellows, a slideway formed on the pedal of said engine, a carriage arranged to move freely in said slideway, means for locking said carriage in said slideway and means for operatively connecting said carriage with said pump so that actuating the pedal of the dental engine will operate the pump.

2. The combination with a dental engine of an attachment comprising a bellows, a block secured to the pedal of the dental engine, a slideway formed in said block, teeth arranged in said slideway, a carriage arranged to travel in said slideway, a pawl mounted on said carriage and arranged to engage said teeth, means for lifting the pawl out of engagement with said teeth and a cord connecting said bellows and said carriage, substantially as described and for the purpose set forth.

3. The combination with a-dental engine of an attachment comprising a bellows, a block secured to the pedal of the dental engine, a

an attachment comprising, a bellows, a block secured to the pedal of said dental engine, a slideway formed in said block, teeth arranged in said slideway, a carriage arranged to travel on said slideway, a pawl mounted on said carriage and arranged to engage said teeth, a stud mounted in said carriage and resting on said pawl and a cord connecting said bellows and said carriage, substantially as described and for the purpose set forth.

5. The combination with a dental engine of an attachment, comprising, a bellows, a block secured to the pedal of the dental engine, a slideway formed in said block, teeth removably secured in said slideway, a carriage arranged to travel in said slideway, a pawl mounted in said carriage and arranged to engage said teeth, means for lifting the pawl out of engagement with said teeth, a pin arranged transversely of said slideway, and a cord passing under said pin, and connecting the said bellowsand the said carriage, substantially as described and for the purpose set fort i 6. In a dental engine, the combination with the standard, treadle, and handpiece, of an attachment comprising a bellows supported on said standard, a liquid-receptacle secured to the standard above said bellows. rigid tubes adjustably seated in stopper of said receptacle and adapted to extend into the same whereby said receptacle can be converted into a siphon, atomizer, or air-reservoir, a nozzle secured to the handpiece, a flexible tube connecting one of said rigid tubes with said nozzle,a flexible tube connecting the other of said rigid tubes with the bellows, and means for opera- ISIDOR LYMAN.

Witnesses:

VICTOR O. LYNoH, Gr. M. HAYES. 

